CN101740883A - Surface-mounted elastic sheet with adsorption bulge - Google Patents
Surface-mounted elastic sheet with adsorption bulge Download PDFInfo
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- CN101740883A CN101740883A CN200810043926A CN200810043926A CN101740883A CN 101740883 A CN101740883 A CN 101740883A CN 200810043926 A CN200810043926 A CN 200810043926A CN 200810043926 A CN200810043926 A CN 200810043926A CN 101740883 A CN101740883 A CN 101740883A
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- adsorption bulge
- elastic arm
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Abstract
The invention discloses a surface-mounted elastic sheet with an adsorption bulge. The elastic sheet comprises an mounting section, an elastic arm section and the adsorption bulge, wherein the mounting section is used for arranging the elastic sheet at a preset position on a circuit board; the elastic arm section is formed by bending and extending one end of the mounting section, and is provided with an inclined arm part at an inclined angle with the mounting section; and the adsorption bulge is formed on the elastic arm section and protrudes from the elastic arm section to a direction far away from the mounting section, and at least part of the adsorption bulge is positioned on the inclined arm part. The adsorption bulge occupies few spaces and can be positioned on an elastic arm so as to further miniaturize the overall size of the elastic sheet and more meet the requirements of present circuit components. In addition, the adsorption bulge has a cambered surface structure, which can ensure smooth contact points of the adsorption bulge and the upper conductive components even if the elastic arm is elastically deformed and bent. The adsorption bulge also can ensure that sharp angles cannot occur at the upper contact positions so as to maintain good conductive contact.
Description
Technical field
The present invention relates to a kind of surface-mounted elastic sheet; Especially a kind of surface-mounted elastic sheet with adsorption bulge.
Background technology
Because the electronic product manufacturing technology is constantly progressive, the various consumption electronic products of carrying use renovate day by day, and each is there's no one who doesn't or isn't compact with moulding to be main flow, therefore, the interlock circuit assembly is not only day by day microminiaturized, and be in response to automated job, matching surface mounting technique (SMT) is for being mounted on the circuit board mostly.
Shown in Fig. 1-2, Chinese patent CN2514508Y discloses a kind of miniature shell fragment on October 02nd, 2002, shell fragment 1 mainly comprises installation portion 10, invayination 12, elastic arm 14, abutting part 16 and Er File portion 18 and constitutes, wherein invayination 12 is by the extension of one of installation portion 10 length bearing of trends end and is bent to installation portion 10, elastic arm 14 then be connected in invayination 12 1 ends and with installation portion 10 at angle away from installation portion 10 and oblique extension, abutting part 16 then is to be connected in elastic arm's 14 1 ends and in order to be connected to another member.
Owing to abutting part 16 has a flat surfaces, move to precalculated position release for the suction nozzle absorption and with shell fragment 1, for reaching stable absorption and mobile shell fragment 1 and reducing the purpose of slipping up, abutting part 16 must have the flat surfaces of certain size.On the other hand, the elasticity when guaranteeing abutting part 16 pressurizeds, elastic arm 14 must have sufficient length, when elastic arm 14 is restricted with the size of abutting part 16, to make shell fragment overall dimensions desire little difficult on the one hand, relatively, also can't reduce to expect the consumption of material.Therefore, for suction nozzle absorption, and effectively control the size of this absorbed portion if can otherwise replace smooth surface, no matter the cost control of shell fragment and microminiaturized aspect, all can produce the space of significantly improvement.
Summary of the invention
At the above-mentioned deficiency of prior art, technical problem to be solved by this invention is to propose a kind ofly can significantly reduce the adsorption section area occupied, makes the whole further microminiaturized surface-mounted elastic sheet of shell fragment.When elasticity was identical, consumption material of the present invention was less, manufacturing cost further reduces; The present invention surface is compressed part for the adsorption section of arc can be used as, and when making the deformation of elastic arm's pressurized, remains arc with top assembly contact portion and contacts, and does not have sharp-pointed contact portion.
In order to solve the problems of the technologies described above, the surface-mounted elastic sheet with adsorption bulge that the present invention proposes comprises: for the construction section that is mounted to precalculated position on the circuit board; Bend the elastic arm section that extends to form by this construction section one end, and this elastic arm section has the inclined arm part that is an angle of inclination with this construction section; Be formed at this elastic arm section, by this elastic arm section towards the adsorption bulge that protrudes out and be positioned at this inclined arm part away from this construction section direction to small part.
Preferably, this adsorption bulge is one-body molded with this elastic arm section, and in the slim projection that has circular cross-section along parallel this construction section direction.
Preferably, this inclined arm part and this construction section are acute angle and extend, and this elastic arm section also comprises the reversed dip portion of being extended away from this construction section end bending by this inclined arm part.
Preferably, this adsorption bulge is formed at this inclined arm part and this reversed dip portion connection.
Preferably, this adsorption bulge is shaped in this inclined arm part.
With respect to prior art, the present invention is formed in the elastic arm section owing to adsorption bulge, and with the absorption of a convex confession suction nozzle, flat surfaces with respect to prior art, dimension reduction is quite obvious, make shell fragment integral body significantly to be shortened, the material of consumption also reduces thereupon, makes product cost be lowered.Especially adsorption bulge can be arranged at the top of elastic arm section, when the side of keeping supplying compresses as contact portion, even elastic arm section pressurized deformation, adsorption bulge still can keep protruding from elastic arm section top, and with its circular-arc surface, guarantee the level and smooth of contact portion and do not have sharp-pointed part, make good with contacting of top assembly.
Description of drawings
Fig. 1 is the schematic perspective view of common miniature shell fragment.
Fig. 2 is the end view of the miniature shell fragment of Fig. 1.
Fig. 3 is the schematic perspective view of first embodiment of the invention.
Fig. 4 is the end view of first embodiment of the invention.
Fig. 5 is the end view of second embodiment of the invention.
Fig. 6 is the end view of third embodiment of the invention.
Wherein: 1,2,2 ', 2 " is shell fragment; 10 is installation portion; 12 is invayination; 14 is the elastic arm; 16 is abutting part; 18 is stopper; 20,20 " be construction section; 22, be the elastic arm section 22 ', 22 "; 24, be inclined arm part 24 ', 24 "; 26,26 " be reversed dip portion; 28, be adsorption bulge 28 ', 28 ".
Embodiment
Below in conjunction with the drawings and specific embodiments, further set forth the present invention.These embodiment are interpreted as only being used to the present invention is described and are not used in restriction protection scope of the present invention.After the content of having read the present invention's record, those skilled in the art can make various changes or modifications the present invention, and these equivalences change and modify and fall into claim of the present invention institute restricted portion equally.
As shown in Figure 3-4, the surface-mounted elastic sheet 2 that a preferred embodiment of the present invention provides utilizes the laminar conductive metallic material bending of a rubber-like to form, mainly comprise construction section 20 and elastic arm section 22, in the present embodiment, elastic arm section 22 further comprises inclined arm part 24, reversed dip portion 26 and adsorption bulge 28.
Identical with above-mentioned prior art, the bottom of shell fragment 2 has the construction section 20 that one section confession is soldered to precalculated position on the circuit board, and extend one section elastic arm section 22 from the end bending of construction section 20, in the present embodiment, construction section 20 upwards forms earlier a little bending, again behind construction section 20 replications, reflexed goes out one section and is the inclined arm part 24 at an angle of inclination with this construction section 20.By construction section 20 and 24 folded little bendings of inclined arm part, can limit scolding tin after fusion, the unlikely inclined arm part 24 of climbing, thus avoid causing interference and impairment for the elasticity of inclined arm part 24.
24 of inclined wall portion are an acute angle with construction section 20 extends, and when being subjected to downward pressure as shell fragment 2 integral body, provides elastically-deformable major part.Elastic arm section 22 away from construction section 20 ends, is extended a reversed dip portion 26 towards the bending of construction section 20 directions in inclined arm part 24 more once again, and the tail end that reduces inclined arm part 24 on the one hand forms sharp-pointed free end, meaningless incised wound operating personnel's risk; Also can reduce 20 formed openings of inclined arm part 24 tail ends and construction section on the other hand, reduce shell fragment 2 and got and the probability of deformed damaged by unexpected upwards colluding.
In the present embodiment, in inclined arm part 24 and reversed dip portion 26 connections, also be formed with one roughly be the ball shelly, towards the adsorption bulge 28 that protrudes out away from construction section 20 directions.Because general suction nozzle lower end is to be hollow ring and by the air-breathing negative pressure that provides of center through hole, for drawing circuit unit; Therefore, when the spherical shell radius of adsorption bulge 28 greater than the suction nozzle radius, and the direction with parallel construction section 20 is observed, the slim projection of adsorption bulge 28 has circular cross-section, the center through hole of suction nozzle will just in time can be adsorbed protuberance 28 fully and cover, the negative pressure of suction nozzle puts on adsorption bulge 28 fully, thereby draws and move shell fragment 2 smoothly.
Therefore, adsorption bulge 28 only need be designed to the slim projection that radius is slightly larger than the suction nozzle radius, needn't supply as the plane that planning a slice is bigger as the prior art to draw, also make elastic arm section 22 to be reduced to inclined arm part 24--reversed dip portion 26 two-stage structures by--horizontal adsorption section--reversed dip portion three-stage structure by original being seen inclined arm part, overall dimensions effectively reduces, adsorption effect does not then have difference, suction means shell fragment 2 can be picked up equally, stably mobile shell fragment 2 utilizes scolding tin that construction section 20 is welded in precalculated position on the circuit substrate to circuit substrate again.Thus, not only can comply with the trend of circuit unit microminiaturization, and, further reduce the shell fragment materials and simplified machining clearance because of simple in structure, also simpler and easy in the making than prior art, product cost is reduced increasingly.
Moreover as protruding from the adsorption bulge 28 of elastic arm section 22 tops in the present embodiment, pressure above elastic arm section 22 is subjected to and moving down in the deformation process will remain on shell fragment 2 the tops and outside protruding from.Therefore, circuit unit that the top presses down or circuit board have the adsorption bulge 28 on circular-arc surface with sustainable this kind of contact, can not be subjected to any unnecessary sharp-pointed part scratch, thereby guarantee the relation that well is electrically conducted of contact portion.
Certainly, adsorption bulge is not limited to described inclined arm part of first embodiment and reversed dip portion intersection, as shown in Figure 5, the adsorption bulge 28 ' of the surface-mounted elastic sheet 2 ' that the present invention's second preferred embodiment provides also can fully integratedly take shape in the inclined arm part 24 ', only need guarantee that suction nozzle can correctly be located and draw this adsorption bulge 28 ', can attract and move whole shell fragment 2 '.And 28 ' of adsorption bulge still can reach the designs simplification that makes horizontal adsorption section, the technique effect of volume-diminished in elastic arm section 22 ', improve the above-mentioned disappearance of prior art.
As shown in Figure 6, the shell fragment 2 that the present invention's the 3rd preferred embodiment provides "; with the so-called inclined arm part and the reversed dip portion name swap of the foregoing description; with adsorption bulge 28 " is shaped in previously described reversed dip portion position, so in the present embodiment, adsorption bulge 28 " still be positioned at elastic arm section 22 " among, with construction section 20 " be an inclined arm part 24 that intersects less than an angle of 90 degrees " locate, and can draw for suction nozzle.And can reach the purpose of omitting smooth adsorption section equally, thereby save product materials, reduction usage space.
Claims (5)
1. the surface-mounted elastic sheet with adsorption bulge is characterized in that, this shell fragment comprises:
For the construction section that is mounted to precalculated position on the circuit board;
Bend the elastic arm section that extends to form by this construction section one end, and this elastic arm section has the inclined arm part that is an angle of inclination with this construction section;
Be formed at this elastic arm section, by this elastic arm section towards the adsorption bulge that protrudes out and be positioned at this inclined arm part away from this construction section direction to small part.
2. surface-mounted elastic sheet according to claim 1 is characterized in that, this adsorption bulge is one-body molded with this elastic arm section, and in the slim projection that has circular cross-section along parallel this construction section direction.
3. surface-mounted elastic sheet according to claim 1 is characterized in that, this inclined arm part and this construction section are acute angle and extend, and this elastic arm section also comprises the reversed dip portion of being extended away from this construction section end bending by this inclined arm part.
4. the surface-mounted elastic sheet with adsorption bulge according to claim 3 is characterized in that, this adsorption bulge is formed at this inclined arm part and this reversed dip portion connection.
5. according to claim 1 or 2 or 3 described surface-mounted elastic sheets, it is characterized in that this adsorption bulge is shaped in this inclined arm part with adsorption bulge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810043926A CN101740883A (en) | 2008-11-13 | 2008-11-13 | Surface-mounted elastic sheet with adsorption bulge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810043926A CN101740883A (en) | 2008-11-13 | 2008-11-13 | Surface-mounted elastic sheet with adsorption bulge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101740883A true CN101740883A (en) | 2010-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810043926A Pending CN101740883A (en) | 2008-11-13 | 2008-11-13 | Surface-mounted elastic sheet with adsorption bulge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101740883A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658602A (en) * | 2017-09-26 | 2018-02-02 | 深圳市信维通信股份有限公司 | A kind of elastic sheet connector |
| GB2541573B (en) * | 2014-04-15 | 2021-06-16 | Inter Control Hermann Koehler Elektrik Gmbh & Co Kg | Thermal switching element and contact element |
-
2008
- 2008-11-13 CN CN200810043926A patent/CN101740883A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2541573B (en) * | 2014-04-15 | 2021-06-16 | Inter Control Hermann Koehler Elektrik Gmbh & Co Kg | Thermal switching element and contact element |
| CN107658602A (en) * | 2017-09-26 | 2018-02-02 | 深圳市信维通信股份有限公司 | A kind of elastic sheet connector |
| CN107658602B (en) * | 2017-09-26 | 2023-10-13 | 深圳市信维通信股份有限公司 | Spring plate connector |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100616 |